Advice on ballast replacement please (T5 ring)

[Wayne Blackburn]

I have two identical ceiling lights which use T5 fluorescent ring tubes (1 x 40w). Both tubes work OK in the working light so I tried swapping the ballasts which moved the fault so I'm assuming it's a faulty ballast.

The working one is a 3AAA YZ-140EAA and I'm looking at a
Osram QTP-M 1x26-42/220-240 as a replacement.

My main concern is that the Osram has 6 power connections and the 3AAA only 4. There's a diagram on the casing of the Osram which does show a connection using 4 of the connectors but my interpretation of the diagram is that it's telling me to connect the two spare connectors together rather than leave them unconnected.

Am I interpreting that diagram correctly?

Any advice gratefully received.
Wayne

 

[Wayne Blackburn]

Actually it may just be that the Osram one isn't pictured correctly on any of the seller's sites I've looked. The unit number doesn't seem to match on the photo.

 

[telectrix]

change the tubes to LED and dump the ballasts.

 

[Wayne Blackburn]

change the tubes to LED and dump the ballasts.

Which would surely involve new light fittings? I know that's an option.

 

[telectrix]

no, you can just replace the tubes with LED. omit the ballast, just feed L and N to the tubes in original fitting.

 

[Wayne Blackburn]

no, you can just replace the tubes with LED. omit the ballast, just feed L and N to the tubes in original fitting.

So any recommendation on which LED fittings to best replace a 40W ring? For the moment I've ordered a ballast but in the longer term some sort of replacement would be good - the T5 rings are hard to source other than online and mail order is always risky with such fragile items.

 

[westward10]

no, you can just replace the tubes with LED. omit the ballast, just feed L and N to the tubes in original fitting.

They are the old circular floris.

 

[telectrix]

missed the OP 's ring.so my bad. just replace the fittings for some that were designed after 1970 then,

 

[gazdkw82]

Theres LED retrofit's for nearly every type of tube. Do some research and I bet you'll find something.

Best to get rid of all the gear and go LED.

 

[westward10]

I have searched but I think those circular tubes are not worth the expense of producing and led equivalent.

 

[Wayne Blackburn]

Thanks guys. I've ordered a replacement ballast and it will hopefully be obvious how to fit it when it arrives - online photos mismatching the actual product seems to be a common problem. I do want to replace the lights but not right now as we've got a big bill to pay for roof repairs.